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Posted on Jan 02, 2017

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I think it is case of mistaken identity. There is a function called the power function. The general form of it is a*(b)^x or a times (b) to the power of x. a is just a constant factor (not equal to 0) and b is the so-called base ( also different from zero). Personnally I call this function the power function, but you find it is often called the **exponential function.**

The exponential function**e^x **is similar to the power function. The main difference is that its base is a certain irrational number called e (=2.718281828...).

What you want to do, as far as I can guess is to calculate 2000*(1+0.12)^20.

Simplify your life and set 1+0.12 as 1.12, and type in 2000 [*]1.12^20=

1.12^20=9.646293093. Multiplied by 2000, this gives you a final result 19 292.58

**To enter the the power use the key marked as [X^y], [Y^x] or [^]**

The exponential function

What you want to do, as far as I can guess is to calculate 2000*(1+0.12)^20.

Simplify your life and set 1+0.12 as 1.12, and type in 2000 [*]1.12^20=

1.12^20=9.646293093. Multiplied by 2000, this gives you a final result 19 292.58

Jun 26, 2012 | Sharp EL-531VB Calculator

You can't enter it as such, but you can calculate the value as 1 0 y^x ( 6 1 / 2 0 ) =

"y^x" is the key just above the divide key. The parentheses keys are just above the 8 and 9 keys.

"y^x" is the key just above the divide key. The parentheses keys are just above the 8 and 9 keys.

Sep 30, 2011 | Texas Instruments TI-30XA Calculator

x-intercept (or zero of the function)

Set y=0 in the equation and solve fo x: 2x-5(0)=20 and x=20/2=10

y-intercept (initial value)

Set x= 0 in the equation and solve for y: 2(0)-5y=20 and y=20/(-5)=-4

If the equation is in the slope-intercept form y=ax+b

1. y-intercept is b

2. To get the x-intercept ( zero of the function) Set y=0=ax+b, and x=-b/a

Set y=0 in the equation and solve fo x: 2x-5(0)=20 and x=20/2=10

y-intercept (initial value)

Set x= 0 in the equation and solve for y: 2(0)-5y=20 and y=20/(-5)=-4

If the equation is in the slope-intercept form y=ax+b

1. y-intercept is b

2. To get the x-intercept ( zero of the function) Set y=0=ax+b, and x=-b/a

Aug 27, 2011 | Texas Instruments TI-84 Plus Calculator

530.

Press 2 6 5 0 * 2 0 / 1 0 0 ENTER to calculate it.

Press 2 6 5 0 * 2 0 / 1 0 0 ENTER to calculate it.

Jun 08, 2011 | Texas Instruments TI-83 Plus Calculator

1 . 0 1 y^x 1 0 0 =

y^x is the key just above the 7 key.

y^x is the key just above the 7 key.

Mar 20, 2011 | Texas Instruments BA-II Plus Calculator

4 5 0 0 0 +/- PV (investment amount, negative because you're paying it out)

2 5 0 0 0 0 FV (desired amount, positive because you're receiving it)

2 0 SHIFT xP/YR (20 years)

I/YR (calculate annual interest rate)

2 5 0 0 0 0 FV (desired amount, positive because you're receiving it)

2 0 SHIFT xP/YR (20 years)

I/YR (calculate annual interest rate)

Jan 23, 2011 | HP 10bII Calculator

To enter an exponent, positive or negative, use the EE (Enter Exponent) key (the shifted function of the , key just above the 7 key). Do 5 2ND [EE] (-) 1 0 / 5 2ND [EE] (-) 1 0 ENTER and you'll see 1.

What I think you're doing (I can't be sure without seeing your keystrokes) is calculating

5*10^-10/5*10^-10 which is interpreted as (5*10^-10/5)*10^-10, which indeed is 10^-20.

What I think you're doing (I can't be sure without seeing your keystrokes) is calculating

5*10^-10/5*10^-10 which is interpreted as (5*10^-10/5)*10^-10, which indeed is 10^-20.

Oct 16, 2010 | Texas Instruments TI-84 Plus Silver...

I found it by myself, I can help you.

1. Press (AC)

2. Hold (Rate) for about 2-3 second

3. Press (Set / TAX+)

4. Input the tax rate

5. Press (Set / TAX+)

6. Hold (Rate) for about 2-3 second again

7. Press (Set / TAX+) again

And Then you can test the rate .

From Thailand

1. Press (AC)

2. Hold (Rate) for about 2-3 second

3. Press (Set / TAX+)

4. Input the tax rate

5. Press (Set / TAX+)

6. Hold (Rate) for about 2-3 second again

7. Press (Set / TAX+) again

And Then you can test the rate .

From Thailand

Mar 12, 2009 | Casio Office Equipment & Supplies

-1E-13 is a very small number. When doing this kind of a problem you can regard 1E-13 as 0.

Remember that pi is an irrational number. It is only estimated on your calculator. I just played around with a TI-83 and found the following answers:

cos(pi/2) = 0

cos(2*pi + pi/2) = 0

cos(4*pi + pi/2) = 1E-13

cos(20*pi + pi/2) = -1E-13

As you know, that correct answer to each of these is 0. The calculator gives non-zero answers because some very small errors are accumulating. There is nothing wrong with your calculator.

Remember that pi is an irrational number. It is only estimated on your calculator. I just played around with a TI-83 and found the following answers:

cos(pi/2) = 0

cos(2*pi + pi/2) = 0

cos(4*pi + pi/2) = 1E-13

cos(20*pi + pi/2) = -1E-13

As you know, that correct answer to each of these is 0. The calculator gives non-zero answers because some very small errors are accumulating. There is nothing wrong with your calculator.

Nov 20, 2007 | Texas Instruments TI-83 Plus Calculator

If i type 10+10 it comes up with 10+10=20 and my setting is on Math G . So mabey try that ?

May 07, 2007 | Casio FX300S-TP Calculator

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